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CBSE Class 10 Maths (Standard) 2025 · Paper 30/1/1 · Question 36

Arithmetic Progressions 4 marks Easy
Case Study - 1: A school is organizing a charity run to raise funds for a local hospital. The run is planned as a series of rounds around a track, with each round being 300 metres. To make the event more challenging and engaging, the organizers planned to increase the distance of each subsequent round by 50 metres. For example, the second round will be 350 metres, the third round will be 400 metres and so on. The total number of rounds planned is 10. Based on the information given above, answer the following questions.
  1. (i)Write the fourth, fifth and sixth term of the Arithmetic Progression so formed.[1]
  2. (ii)Determine the distance of the 8th round.[1]
  3. (iii)(a)Find the total distance run after completing all 10 rounds.[2]
  4. (iii)(b)OR — If a runner completes only the first 6 rounds, what is the total distance run by the runner?[2]

Answer

(i) The fourth, fifth and sixth terms are m, m and m; (ii) The eighth round is m long; (iii)(a) The total distance run in all rounds is m; (iii)(b) The total distance run in the first rounds is m.

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